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If you expect you might get these types of reactions, listen to the comments, and if they are valid concerns, accept them and say that you ll take them into account while you prepare your next presentation. But if the comments are more about politics than the presentation, defend your BBP foundation and explain how and why BBP works effectively to increase the audience s understanding of your material. Explain the research realities from 2, the classical story structure of Act I from 4, the logical critical-thinking structure of Act II from 5, and the way the storyboard balances verbal and visual channels from s 6 through 8. If appropriate, set up a separate meeting at your organization where you use the 2 research realities to compare the old way and the BBP way side by side. When you are con dent that you have effectively prepared your presentation using BBP, you can be con dent that you present your clear case for how and why your presentation works. Now that you have reviewed a range of presentation examples, it s time to move on to the next chapter and review the elements you should consider when you deliver a BBP presentation.

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Once the SQLite3 libraries are installed, you can install the Ruby library that gives Ruby access to SQLite3 databases as a gem. The gem is called sqlite-ruby and can be installed on all systems with gem install sqlite3-ruby or sudo gem install sqlite3-ruby on Unix-related operating systems if you aren t running as a super-user. (For information about installing Ruby gems, refer to 7.) You can check that everything was installed okay with this code:

require 'rubygems' require 'sqlite3' puts "It's all okay!" if defined (SQLite3::Database)

IN THIS CHAPTER, YOU WILL:

It's all okay!

In this section, we examine two classic recursive functions First, let s say you want to compute the factorial of a number n The factorial of n is defined as n (n 1) (n 2) 1 It s used in many mathematical applications (for example, in calculating how many different ways there are of putting n people in a line) How do you calculate it You could always use a loop: def factorial(n): result = n for i in range(1,n): result *= i return result This works and is a straightforward implementation Basically, what it does is this: first, it sets the result to n; then, the result is multiplied by each number from 1 to n 1 in turn; finally, it returns the result But you can do this differently if you like.

If the installation didn t progress smoothly, links to SQLite resources are available in Appendix C.

THE ROOT of the word inspire, spirare, means to breathe, and that s one of the core objectives of the BBP approach to inspire you with the con dence and tools you need to breathe deeply and relax more when you present. Most of the elements that contribute to your con dence are built into the BBP process every step of the way, but now, when you ve nished your presentation, it doesn t hurt to revisit them as you prepare to bring your story to life.

To manage databases with any of the various database systems at a basic level, knowledge of several SQL commands is required. In this section we re going to look at how to create tables, add data to them, retrieve data, delete data, and change data. Throughout this section, think entirely in terms of databases separately from Ruby. A demonstration of how Ruby can use SQL to manipulate a database is covered in detail in the later section Using SQLite with Ruby.

Note If you re already familiar with SQL, you can skip the next few sections and jump straight to the

Remove distractions from the presentation environment. Rehearse the delivery of your presentation. Deliver a dynamic presentation using Beyond Bullet Points (BBP).

Structured Query Language (SQL) is a special language, often known as a query language, used to interact with database systems. You can use SQL to create, retrieve, update, and delete data, as well as create and manipulate structures that hold those data. Its basic purpose is to support the interaction between a client and a database system. In this section I m going to give you a primer on SQL s syntax and how you can use it from Ruby. Be aware that this section is only a very basic introduction to SQL, as a full and deep explanation of SQL is beyond the scope of this book. If you wish to learn SQL in more depth, please refer to the resources mentioned in Appendix C. Note that the way different database systems use and implement SQL can vary wildly, which is why the following sections will only cover that which is reasonably standard and enables you to perform basic data operations.